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What do stock LS1's dyno/run in the 1/4?

This is a discussion on What do stock LS1's dyno/run in the 1/4? within the Dyno Information forums, part of the Racing Forums category; DarthD its a dynojet model 248x...

  1. #101
    2000z28
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    DarthD
    its a dynojet model 248x

  2. #102
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    Bright Red
    1989 IROC-Z 355

    Quote Originally Posted by Billz90L98
    yeah.....and my 90 5.7 TPI is faster than her car......and its only 215 rwhp and 338 rwtq.
    Hell yeah, i have 89 iroc L98. got rebuilt with stock parts, so it's a 355. All i have is a home made cold air running into the stock gutted box and a dynomax cat-back system and i beat brandnew manual 350zs all the time.

  3. #103
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    white
    2000 Camaro Z28

    A stock IROCZ can do 14.5@95 all 350 IROCZ were automatic

    They were rated from 220 HP fpor the early ones allthe way to 245 for the later models

    I love the third gen f-bodies I has Two 84 Z28's

    a LG4 305 Automatic T-Top

    and a L69 H.O. 5 speed hard top

  4. #104
    Member since 1998 DarthD's Avatar
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    Black ASC#7564 May11,2001
    2001 Trans Am WS6

    If your car is an auto, then that is a little on the low side. If it is a six speed then it is very low. Are the numbers corrected to SAE? If not, that could explain it.

    From what I have heard, a Flowmaster muffler will not give an LS1 any power increase and there have been mixed results for the programmers. (I assume this is what you mean by 'chip'.) I think some people have said they have lost power with a programmer.

  5. #105
    2000z28
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    i dont know what u mean by corrected by sae, i am new to the whole drag racing scene, the programmer "chip" i have is made by superchips, i only bought it to recalibrate my speedo for my 3.42 gears, in some ways i like it, but a lot of times it seems like it is slower than before, does anyone else have the same programmer? i was pretty pleased with my 13.5, i thought it was pretty good considering it was my first time racing and i didnt deflate my tires at all, but apparently others are running the same times stock, so should i take the flowmaster off?

  6. #106
    Member Ramairgod's Avatar
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    Red
    02 Pontiac Trans Am WS6

    I had mine Dynoed this past weekend...324rwhp and 334rwtq
    [COLOR=black]I Peddle Posters

  7. #107
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    white
    2000 Camaro Z28

    RAMAIRGOD, did you ever run yours in the 1/4 or just the 1/8th?

    I ran a 8.6@85 8th

    http://www.cardomain.com/ride/2348722 my car
    MTI Clear Lid (Free Ram Air Mod Raised Air box) Larger MAF Ends,K&N Filter, SS Exhasut with cut out, rear Lower control arms,smooth bellows,12.894@107.10MPH Dynoed 316 HP (Before RLCA and smooth bellows) 8.3.12 @86.86 1/8th mile 121,000 miles

  8. #108
    Evr sena bdgr killa snak? Roastem's Avatar
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    Pewter
    '99 Z28 M6

    Quote Originally Posted by damac
    I have a 02ss with slp options includes the blackwing box, cat back dual dual. The factory rated it at 345rwhp I wanted to add some stuff to it but before I did I had it dyno and it was 345rwhp. I could not believe it but that what it ran. Since then I added a mass air sensor BBK throttle body and got a Diablo turner and I can tell it is faster now but I haven't made another run on the dyno yet. I haven't taken it to the track yet so I don't know what it runs in the 1/4.
    Factory rated at 345 rwhp? And you dynoed it and spat out 345 rwhp with just a lid and catback? Sounds a little fishy. Did you buy it used, maybe somebody slipped a cam in it or something?

  9. #109
    Member Ramairgod's Avatar
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    Red
    02 Pontiac Trans Am WS6

    Quote Originally Posted by tx77015ls1
    RAMAIRGOD, did you ever run yours in the 1/4 or just the 1/8th?

    I ran a 8.6@85 8th

    http://www.cardomain.com/ride/2348722 my car
    Just 1/8th mile..there isnt and 1/4 around here where i live.

  10. #110
    Junior Member Toadman's Avatar
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    Artic White
    2001 Camaro

    Mine was dynoed on a mustang dyno 2yrs ago. It was 279hp and 304 tq (all mods except headers and pulley). Then I did a 1/4 on it and ran a 13.7 @ 104mph. I was very dissappointed with it. I ran a GTP that ran 13.8 on the street before that and beat him by 3 to 4 cars 2 different times and the last time spun starting out but passed him at 70mph. Something does add up but I will get it redynoed on a dyno jet after I get a throttle body and pulley installed.
    http://i69.photobucket.com/albums/i5...amarocopy1.jpg
    2001 Z28:Artic White
    Kook headers and Catted Y pipe,SLP Ultra Z Hood,SLP Airlid & K&N Airfilter,SLP MAF,SLP Bellows,LoudMouth Exhaust,Power Underdrive Pulley 2.73 Gears

  11. #111
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    white
    2000 Camaro Z28

    Do you have a K&N? I raised my air box as far as I could. I also cut the bottom out 0of my air box to expose as much of the filter area as posible.

    I think that helped alot.

    how many miles?

  12. #112
    Junior Member Toadman's Avatar
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    Artic White
    2001 Camaro

    I had probaley like 17000 miles on it when i did the dyno. I have a K&N filter but the box isnt raised. I did think about it after I dynoed it that day and my hood was partly latched and I think the rubber seal that came with the hood blocked alot of the air coming from underneath the car.

  13. #113
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    Black
    2002 SS

    Quote Originally Posted by Roastem
    Factory rated at 345 rwhp? And you dynoed it and spat out 345 rwhp with just a lid and catback? Sounds a little fishy. Did you buy it used, maybe somebody slipped a cam in it or something?


    The factory rating is 345 flywheel hp. I don't know about his dyno #'s. I have the 345 option but have never had it on the dyno.

  14. #114
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    Lemans Blue
    06 Corvette

    Glad I live in Houston!!!... If I only Ran 14's I wouldn't bother going. I ran low 13's at 106 in the 01 cobra. Haven't had a chance to run the vette yet. But I would see LS1s running high 12's low 13's all day at baytown. Saw a friends ls1 z28 Dyno at 305 rwhp stock

  15. #115
    Member Cobra2WS6's Avatar
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    White
    1999 WS6

    Never had it dynoed but ran 13.4@107 stock. SO I am guessing it had over 300rwhp

  16. #116
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    Red
    99 T/A

    lookin @ the dyno sheet on the second page made me wonder about a torque converter.. i have a stock 99 A4 w/ 20K miles. I think im gunna put a B&M Transpak w/ tranny cooler and then prob. a converter... should i run a 3600 or is that too high, keep in mind it's bone stock. Should i spend my money on a comp cam and K&N Cold Air first or not?

  17. #117
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    pewter
    2001 z28 lingenfelter 383

    motertrend/car n driver.....a true testiment to what a car is capable of can be found there.........fbodys have always run 13.1 to 13.5 or so in ...at 103-108mph with 6 speeds usually being the higher of the 2. i remember an article back in 98 or 99 where they tested a ws6 6 speed at 13.09 at 107.8...bone stock obviously

  18. #118
    WishIHadAPantera
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    Motortrend

    While magazines are great, we all know that they have little significance when a real owner brings them to a real track...

  19. #119
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    red
    98 ss

    My brother just ran his 00 trans am at super chevy (maple grove raceway). His only mods are magnaflow catback and the free mods. His best time of the weekend was 13.4 his avg. was about 13.5 his first time running the car.

  20. #120
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    red
    2000 trans am ws6

    At our local track where traction is a problem for every car it seems, Iv never seen a LS1(most are stock or close that Iv seen) not in the 13s usally in the 13.4-13.6 range. My car ran a 13.5 last time I ran it with 2.1 60ft.

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